Suspend will put irq, so resume need get irq back.
And in the same time, skip other ras initialization.
Signed-off-by: Nxinhui pan <xinhui.pan@amd.com>
Reviewed-by: NHawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>